Gas-burner.



No. 815,536. i PATRNTRD MAR. 2o', 1906. P; KELLER.

GAS BURNER.

APPLICATION FILED JULY 20.1905.

-NITED STA-FlinsN PETER'KELLER, or cHIcAGo, iLLINoIs.

PATENT OFFICE.

.To all, whom; tima/y concern.;

Be it known lthat I, PETER KELLER,- a'citizen of the United States,residing at Chicago, in the county ofCookand State of Illinois,

' have invented certain Improvements in Gasy Burners, of which thefollowing is a specification.

. This invention relates to certain improve-- ments in gas-burners, andhasforitsobject to `provide for use. in such burners means forregulating and controlling the supply of gas to the burner tip, wherebyamore even and uniform flame is produced notwithstanding tantadvantagesare attained, and the device vcarefully"defined in the claims. l ""Inthe accompanying vdrawir`1gs,.whicl iV variations in gas-pressure at theservice-pipe and whereby flickering of the flame at thetip is preventedwhen the gas-pressure is low- The invention consists incertain novelfeatures of the construction, combination, r and arrangementof .theseveral parts of the. 'improved gasfburner, Vwhereby certain imporisrenderedslmpler, cheaper, and .otherwise betterA ada ted" and moreconvenient for use,`

all as will t e hereinafter fullyset forth. rIhe novel features of theinvention will be serve to illustrate my'invention, Figure. lis

anv enlarged sectional view taken axially through the pillar-.ofagas-burner provided with .myimprovements Fig. 2 is an.. en-

larged perspective view showing the movable element or member ofthecontrolling means detached from the burner. Fig. Sisan ene largedsectional view. taken horizontally. through the pillar'v of the burnerinthe plane indicatedby linea t in Fig. 1 and showing certain featuresof the inclosed controlling means, as ',willbe hereinafter explained;and. FigA is a view similarto Fig. 1 ,.butshowing. the application ofmylimprovements to the base-support of aBunsen burner, such'as isemployed in lamps of the Welsbach and analogoust es.

Referring tra wiege. .1., eed .3, 1 indicates the pillark of anordinaryasburner,. having'a-Lthreaded lower part 2 or connec- `tion with abracket and having its upper end 3 adapted to receive thetapered lowerend of algas-tip lthe'ordinary' way..V :4 indicates f.- the boreorfhollowed eas-passagev within .the u derk produced. around?` pillar,and. aV sho speeieetioi of Letters Patent. e ibpueaion filed Julyzo,i905. seria No. 270,432.

reuetee ive-infny 2o, laos.

y thefwall of said passageand upon seated thedownwardly-bentannular edgeof l a screen"6,`formed, as herein shown, -offpere forated metal plate,although it may aswell be pro ducedif desired, vfrom metal gauze in awell-known way. I

The n controllingn and` regulatingmeans l are,

housed within the passage 4 beneath the screen `6 and comprise alower-member.7,hav'.

ing an annularA vpendent flan e8r aroundr its outer lower part andvadapted. or snugengagementwithin the wallsof the pillar, which: arelusually slightly ta ered or coned, whereby it will be-understoo that bysimply inserting lsaid' member7within the larger lower end .of

theV gas-passage 4 and pressing it. upward;

. therein. the eXteriorsurfaces of the flange: 8.

} may be tightly pressed within the walls of the tion. during use of theburner.

i vThelower'mernber 7 has-an integral cen-Ap tral nipple or seat 9extended upwardly froml .fitscentral partand of lessdiameter than thevpassageV 4, whereby an annularjspaceor cham- 5 berV is Vproduced withinthe pillar surrounding' said reduced nipple or seat, and 10 indicates.atgas-discharge port producedin the top of' the nipple or seat 9, saidtop being flattenedl i to produce a plane surface," as shown clearlylinFigLl.- 11 represen-ts the upper movable member or element .of thecontrolling or regulating means,and this member is constructed in thelform of a cap or thimble .with-imperforate wallscomprising a topportion and a pendent skirt or edge flange, the diameter of which ismidway between the diameters of the nip-ple;

itslower. edge whenthe cap'is in its lowermost position, as shown inFig. 1, will be ele-;

pillar to hold said member securelyin posi- IOO vated above theVhorizontal outer part. of the lower member 7 sufficientlylto permit free:and unobstructed. flow of gasibetween' the parts, Iso.V that. eventhat4 position .of the.

1 whereby the portions of the under surface of the cap or member beneathsuch corrugations are elevated out of contact with the ilat top face ofthe nipple 9 when the cap is in lowered position, radial gas vents orpassages 13 being thus produced from the opening 10 in the nipple andleading outwardly for communication with the annular space between thependent skirt of the cap and the side walls of the nipple 9, so that insuch position of the parts gas will still be supplied from opening 10 inthe nipple through said vents or channels 13 to the space between themembers and may flow from said space beneath the under edge ofsaidpendent skirt and upwardly in the gas-passage 4 around the cap or member11 to continuously supplythe flame at the tip.

By means of the elevated ridges or corrugations 12 12 in the top portionof the cap or member 11 of the device it will be seen that the remainingintervening portions of said top portion are caused to stand in a lowerplane than the crests of said ridges or corrugations, as indicated at 14in the drawings, and when the cap or member 11 is elevated above thenipple 9 by excessive pressure of the gas escaping at the opening 10 inthe nipple the ridges or corrugations 12 will by contact with the underside of the screen 6 serve to hold the depressed portions 14 of the topof the cap or member 11 out of contact with said screen, so that a freeilow of gas is af- Jorded between said portions 14 and the under side ofthe screen, the gas so supplied escaping through the nterstices of thescreen and being supplied in a continuous manner to the burner-tipabove.

From the above description of my improvements it will be seen that theimproved gas-burner is especially well adapted for use, by reason of thefact that the flow of gas through the passage to the burner iseiiectively regulated and controlled at all times and at the same time,even when the gas is llowing at theeXtreme low or high pressure, the capor. movable member cannot seal either the opening 10 in nipple 9 or theinterstices of the screen 6. In this way a remarkably steady and uniformflame is produced, and flickering, which has been a Jfault hereto- Jforecommon in such devices, is altogether avoided.

It will also be obvious from the above description that the improvedgas-burner constructed according to my invention is capable ofconsiderable modication without material departure Jrom the principlesand spirit of the invention, and for this reason I do not desire to beunderstood as limiting mysell` to the precise form and arrangement ofthe several parts of the device as herein set forth in carrying out myinvention in practice; nor do I wish to be understood as limiting theapplication of my improvements to pillar-burners alone, since it isobvious that the device may be applied to burners of all descriptionswherein it may be desirable to regulate or control the supply of gas tobe burned. For example, in Fig. 4 I have shown the application of myimprovements to the base connection of a Bunsen burner, such as is usedin Welsbach and other similar incandescent gaslamps. As herein shown,said member 1a has a hollow produced in it wherein the improvedregulating and controlling means are located, the construction andarrangement being substantially similar to that above described.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. In a device of the character described, the combination of a lowermember having a central upwardly-extended nipple provided with agasdischarge opening in its top and adapted for location in thegas-passage of a gas-burner or the likeand a cap having a top portionand a pendent edge flange of greater diameter than said nipple, the topportion of the cap being adapted to rest on the nipple and said edgeflange of the cap being spaced from the sides of the nipple and havingits lower edge adapted to stand out of' contact with the lower member insuch position of IOO the cap and said top portion of the cap havingvents adapted for communication with the gas-discharge opening of thenipple and leading outwardly into said space between the edge ilange ofthe cap and said nipple.

2. In a device of the character described,

the combination of a gas-burner or the like having a gas passage, ascreen extended across said passage, a lower member having a pendentedge llange engaged in the gas-passage of the burner below said screenand having a central upwardly-extended nipple of less diameter than thegas-passage and provided with a gas-discharge opening in its top and acap having a top portion and a pendent edge flange, the top portion ofthe cap being adapted to rest on the nipple and said pendent edge ilangebeing extended around the sides or the nipple and spaced therefrom andalso `from the walls of the gas-p assage with its lower edge elevatedout of contact with the said lower member to permit free ilow of gasbetween the parts, the top portion of the cap being corrugated toproduce on its under side radial vents or channels leading from the gas-Adischarge opening ofthe nipple t the space In testimony whereof I havehereunto between the nipple and the edge flange of the signed :my name,at Chicago, Illinois, in the 1o Icap when said cap is lowered, the partsof presence of two subscribing witnesses, this `said top portion betweenthe eorrugations 30th day of June, 1905.

5 forming depressions on the upper surface of PETER KELLER.l

the cap adapted, when the cap is raised, to Witnesses: permit flow ofgas over the top of the o ap to PHILIPP SEILER,

the nterstices of said screen. i v J. D. CAPL'IGER.

